US20060034082A1 - Multi-lens light emitting diode - Google Patents
Multi-lens light emitting diode Download PDFInfo
- Publication number
- US20060034082A1 US20060034082A1 US10/957,650 US95765004A US2006034082A1 US 20060034082 A1 US20060034082 A1 US 20060034082A1 US 95765004 A US95765004 A US 95765004A US 2006034082 A1 US2006034082 A1 US 2006034082A1
- Authority
- US
- United States
- Prior art keywords
- lens
- led
- led chip
- faces
- led according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/52—Encapsulations
- H01L33/54—Encapsulations having a particular shape
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S362/00—Illumination
- Y10S362/80—Light emitting diode
Abstract
Description
- The present application is based on, and claims priority from, Korean Application Number 2004-63630, filed on Aug. 12, 2004, the disclosure of which is hereby incorporated by reference herein in its entirety.
- 1. Field of the Invention
- The present invention relates to a Light Emitting Diode (LED), more particularly, which has multiple lenses and an intermediate layer between the lenses in order to radiate light from an LED chip in a desired direction and/or beam angle without using a complicated lens configuration.
- 2. Description of the Related Art
- A typical LED is fabricated by a following process, in which an LED chip is placed on a reflector, the chip are connected with leads via wires, and resin material for example transparent resin is molded over a resultant structure. Then, light beams emitted from the LED chip are radiated to the outside in a specific beam angle according to the geometry of the reflector and the configuration of the molded resin.
- The beam angle is very small in case of a lamp-type LED. Although a dome-type LED has a relatively larger beam angle, the beam angle is generally within 120°.
- An approach to widen the beam angle is disclosed in Korea Patent No. 10-405453, entitled “Chip Light Emitting Diode and Fabrication Method Thereof.” The LED disclosed in the above document includes a PCB, a metal pad and leads installed on the PCB at a predetermined distance, an LED chip mounted on the metal pad, wires electrically connecting the LED chip with the leads and a molding package rounded over the PCB to cover the LED chip, the wires and the leads.
- The LED can increase the beam angle from conventional 120° up to about 160° according to the configuration of the rounded molding package.
- However, this approach also fails to disclose any means for realizing a beam angle exceeding 160°. In addition, this approach neither discloses any solution for realizing a narrow beam angle in a specific range.
- The present invention has been made to solve the foregoing problems of the prior art and it is therefore an object of the present invention to provide a multi-lens LED which has multiple lenses and an intermediate layer interposed between the multiple lenses in order to radiate light emitted from an LED chip in a desired direction and/or beam angle without using a complicated lens configuration.
- It is another object of the present invention to provide a multi-lens LED which includes a first lens centered behind an LED chip when seen in the propagation direction of light, a concave second lens surrounding the first lens and an intermediate layer interposed between the first and second lenses in order to radiate light emitted from the LED chip in a wide beam angle, and preferably, up to about 180°.
- It is further another object of the present invention to provide a multi-lens LED which includes a first lens centered ahead of an LED chip when seen in the propagation direction of light, a convex second lens surrounding the first lens and an intermediate layer interposed between the first and second lens in order to radiate light emitted from an LED chip in a narrow beam angle, more particularly, in a specific direction.
- According to an aspect of the present invention for realizing the foregoing objects, there is provided a multi-lens LED comprising: a board; an LED chip mounted on the board; a substantially hemispherical first lens placed on the board surrounding the LED chip to direct light emitted from the LED chip in the range of a predetermined beam angle; a substantially hemispherical second lens placed around the first lens at a predetermined space, and having a configuration corresponding to that of the first lens; and an intermediate layer interposed between the first and second lenses, and made of a material showing significant refractivity difference from those of the first and second lenses.
- Preferably, the first lens is smaller than a hemisphere, and the second lens is a concave lens.
- Preferably, the first lens is larger than a hemisphere, and the second lens is a convex lens.
- In the meantime, the terminologies “hemisphere” or “substantially hemispheric” used herein include various convex configurations projected from a plane, and therefore are not necessarily limited to the half of a sphere.
- According to an aspect of the present invention for realizing the foregoing objects, there is provided a multi-lens LED comprising: a board; an LED chip mounted within a reflector on the board, the reflector being adapted to spread light in one axial direction while focusing light in another axial direction; a substantially cylindrical first lens placed on the board surrounding the LED chip on the board along the spreading axial direction to introduce light from the LED chip in a predetermined beam angle; a substantially cylindrical second lens placed around the first lens at a predetermined space, and having a configuration corresponding to that of the first lens; and an intermediate layer interposed between the first and second lenses, and made of a material showing significant refractivity difference from those of the first and second lenses.
- Preferably, the first lens is smaller than the half of a cylinder, and wherein the second lens is a concave lens.
- Preferably, the first lens is larger than the half of a cylinder, and wherein the second lens is a convex lens.
- In any of the foregoing LEDs, it is preferred that the first and second lenses are made of a resin having a refractivity of about at least 1.5 and the intermediate layer is formed of air.
- Any of the foregoing LEDs may further comprise a transparent elastic body tightly contacting an inner surface of the first lens while sealing the LED chip, the transparent elastic body having a refractivity substantially the same as that of the first lens.
- Preferably, the first lens has an outer surface including a number of faces, each of the faces being connected with adjacent one of the faces at a predetermined angle.
- Preferably, the second lens has inner and outer surfaces, at least one of the inner and outer surfaces including a number of faces, each of the faces being connected with adjacent one of the faces at a predetermined angle.
- Preferably, the second lens has an inner surface in close contact with an outer surface of the first lens, and wherein the first lens is made of a transparent material having large refractivity difference from that of the second lens.
- In addition, Any of the foregoing LEDs may further comprise at least one substantially cylindrical third lens having a configuration corresponding to that of the second lens, the third lens being placed around the second lens at a predetermined space.
- The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
-
FIG. 1 is a perspective view of a multi-lens LED according to a first embodiment of the present invention; -
FIG. 2 is a cross-sectional view of the multi-lens LED taken along the line II-II inFIG. 1 ; -
FIG. 3 is a conceptual view illustrating the principle of the multi-lens LED according to the first embodiment of the present invention; -
FIG. 4 is a perspective view of a multi-lens LED according to a second embodiment of the present invention; -
FIG. 5 is a cross-sectional view of the multi-lens LED taken along the line V-V inFIG. 4 ; -
FIG. 6 is a perspective view of a reflector of the multi-lens LED according to the second embodiment of the present invention; -
FIG. 7 is a perspective view schematically illustrating an illustrative application of the multi-lens LED according to the second embodiment of the present invention; and -
FIG. 8 is a sectional view of a multi-lens LED according to a third embodiment of the present invention. - Hereinafter a multi-lens LED according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3, in which
FIG. 1 is a perspective view of the multi-lens LED according to the first embodiment of the present invention,FIG. 2 is a cross-sectional view of the multi-lens LED taken along the line II-II inFIG. 1 , andFIG. 3 is a conceptual view illustrating the principle of the multi-lens LED according to the first embodiment of the present invention. - As shown in FIGS. 1 to 3, a
multi-lens LED 100 according to the first embodiment of the invention includes aboard 102 printed with patterns (not shown), anLED chip 104 mounted on theboard 102, afirst lens 106 for sealing theLED chip 104 and asecond lens 110 placed around thefirst lens 106 at a predetermined space. In addition, anintermediate air layer 108 is form of the air filled between the first andsecond lenses - Though not shown in FIGS. 1 to 3, the
multi-lens LED 100 of the invention also has several components provided in theboard 102 like a typical LED. These components include leads for supplying external voltage to theLED chip 104, a semi-elliptical reflector for reflecting light emitted from theLED chip 104 in an upward direction and a metal pad for radiating heat generated from theLED chip 104 to the outside. - The first and
second lenses first lens 106 and theLED chip 104. Such resin material has excellent optical properties since it has high refractivity and resistance against yellowing, that is, change in quality induced by single wavelength light. Unlike epoxy which is to be solidified, this rein material still remains in a gel or elastomer state even after being cured, and thus can more stably protect theLED chip 104 against thermal stress, vibration and external impact. - The
first lens 106 forms a portion of a sphere S which is drawn in part with a dotted line. The sphere S has a center C located behind theLED chip 104 when seen in the propagation direction of light. In addition, thesecond lens 110 is a portion of a hollow sphere in which inner andouter surfaces lens 110 are located behind theLED chip 104 when seen in the propagation direction of light. Also, theinner surface 112 is centered ahead of theouter surface 114 when seen in the propagation direction of light. Accordingly, thesecond lens 110 which is delineated by the first andsecond surfaces 114 and 116 has a concave lens structure. Thesecond lens 110 has the smallest thickness t1 in a central portion of thesecond lens 110 located in the direct front of theLED chip 104 when seen in the propagation direction of light (or directly upward from theLED chip 104 inFIG. 2 ) and the largest thickness t2 in the periphery of thelens 110 in contact with theboard 102. - The operation of the
multi-lens LED 100 of this structure will be described with reference toFIGS. 2 and 3 . - First, as can be seen from
FIG. 3 , light generated from theLED chip 104 is incident into theintermediate layer 108 or the air layer between thefirst lens 106 and thesecond lens 110 via the first lens 106 (after passing through an elastic body if any). Thefirst lens 106 and theintermediate layer 108 are of materials having different refractivity. That is, thefirst lens 106 made of for example transparent resin has a refractivity of about 1.5 but theintermediate layer 108 made of for example the air has a refractivity of 1. In the meantime, the elastic body made of for example silicone has a refractivity of about 1.5. When introduced into theintermediate layer 108 via thefirst lens 106 from theLED chip 104, a light beam L1 has a specific incidence angle θ1 with respect to the surface of the sphere S, that is, the interface between thefirst lens 106 and theintermediate layer 108. The incidence angle θ1 is defined between the incidence light beam L1 and a normal line N on the incidence point Pi, that is, a straight line drawn along the center C of the sphere S and the incidence point Pi. Since the air or medium in theintermediate layer 108 has a refractivity 1 that is different from the refractivity 1.5 of thefirst lens 106, the incidence angle θ2 of a radiation beam L2 radiated from the incidence point Pi on the surface of the sphere S into theintermediate layer 108 is determined according to Snell's Law which explains the refraction of light as in Equation 1 below:
n 1·sin θ1 =n 2·sin θ2 Equation 1, - wherein n1 is a refractivity of the
first lens 106, θ1 is an incidence angle from thefirst lens 106 into the interface, that is, the outer surface of the sphere S, n2 is a refractivity of theintermediate layer 108, and θ2 is a radiation angle from the interface to theintermediate angle 108. - In this embodiment, the relation θ2>θ1 is obtained since the
first lens 106 as the first medium has a refractivity of about 1.5 and theintermediate layer 108 as the second medium has a refractivity of 1. Then, as can be seen fromFIG. 3 , the radiation beam L2 radiates into theintermediate layer 108 at the radiation angle θ2 with respect to the normal line N that is larger than that of the incidence angle θ1. Therefore, it can be understood that thefirst lens 106 serves to spread light beams emitted from theLED chip 104. - After being introduced from the
first lens 106 into theintermediate layer 108, the light beam also radiates to the ambient air. Since thesecond lens 110 is of the concave lens structure as described above, thesecond lens 110 serves to horizontally spread all of light beams L that propagate through the same. - Therefore, the
LED lenses LED chip 104 in a horizontal direction. Modification to the refractivity and configuration of themultiple lenses - While the first embodiment has been described that the
intermediate layer 108 is of the air, theintermediate layer 108 may be made of other suitable medium having a large refractivity difference from those of the first andsecond lenses - Alternatively, it is possible to omit the
intermediate layer 108 where thesecond lens 110 is formed of a transparent material having a large refractivity difference from thefirst lens 106 in order to realize the objects of the present invention. In this case, for example, the refractivity of the second lens is preferably smaller than that of the first lens but larger than that of the ambient air. - In addition, the
LED chip 104 may be realized in the form of a single chip or a combination of plural chips. TheLED chip 104 may be also selected to emit monochromatic or white light. - Although the multi-lens LED 100 of this embodiment has been described that the surfaces of the first and
second lenses - The multi-lens LED 100 of this embodiment is especially advantageous where the LED is attached to a flat surface such as a wall and a ceiling in order to radiate light uniformly and hemispherically opposite to the flat surface. For instance, the multi-lens LED 100 can be applied to an interior lighting device which is attached to the wall.
- Unlike to the foregoing first embodiment, the first lens maybe centered ahead of the LED chip when seen in the propagation direction of light and the second lens may be of a convex configuration to surround the first lens with the intermediate layer being interposed between the first and second lenses so that light from the LED chip can radiate in a narrow beam angle, in particular, in a specific direction.
- Hereinafter a multi-lens LED according to a second embodiment of the invention will be described with reference to FIGS. 4 to 6, in which
FIG. 4 is a perspective view of a multi-lens LED according to the second embodiment of the present invention,FIG. 5 is a cross-sectional view of the multi-lens LED taken along the line V-V inFIG. 4 , andFIG. 6 is a perspective view of a reflector of the multi-lens LED according to the second embodiment of the present invention. - As shown in FIGS. 4 to 6, a
multi-lens LED 200 according to the second embodiment of the invention includes aboard 202 printed with patterns (not shown), anLED chip 204 mounted on theboard 202, afirst lens 206 for sealing theLED chip 204 and asecond lens 210 placed around thefirst lens 206 at a predetermined space. In this case, anintermediate layer 208 is formed of the air filled between the first andsecond lenses second lenses - Though not shown in FIGS. 4 to 6, the multi-lens LED 200 of the invention also has several components provided in the
board 202 like a typical LED. These components include leads for supplying external voltage to theLED chip 204, asemi-elliptical reflector 216 for reflecting light emitted from theLED chip 204 in an upward direction and a metal pad for radiating heat generated from theLED chip 204 to the outside. - As shown in
FIG. 6 , thereflector 216 is extended in the x-axial direction but formed narrow in the y-axial direction in order to direct light beams L emitted from theLED chip 204 in the x- and y-axial directions, i.e., radial directions of themultiple lenses - The first and
second lenses first lens 206 and theLED chip 204 in order to stably protect theLED chip 204 against thermal stress, vibration and external impact. - The
first lens 206 forms a portion of a cylinder C which is drawn in part with a dotted line. The cylinder has a center C1 placed behind theLED chip 204 when seen in the propagation direction of light. In addition, thesecond lens 210 is a portion of a hollow cylinder in which inner andouter surfaces LED chip 204 when seen in the propagation direction of light. In addition, theinner surface 212 is centered ahead of theouter surface 214 when seen in the propagation direction of light. Accordingly, thesecond lens 210 which is delineated by the first andsecond surfaces second lens 210 has the smallest thickness t1 in a central portion of thesecond lens 210 located in the direct front of theLED chip 204 when seen in the propagation direction of light (or directly upward from theLED chip 204 inFIG. 5 ) and the largest thickness t2 in marginal portions of thelens 210 in contact with theboard 202. - The multi-lens LED 200 of the second embodiment as described above has a radial cross-sectional configuration along the x- and z-axial directions the same as that of the multi-lens LED 100 of the first embodiment. Therefore, it is to be understood that the multi-lens LED 200 of this embodiment operates in the same fashion as the multi-lens LED 100 of the first embodiment when seen in the radial direction of the first and
second lenses - In the meantime, since the
reflector 216 serves to limit the spreading of the light beams L in the y-axial direction, the multi-lens LED 200 of this embodiment provides the radiation beams L with a narrow y-axial beam angle but a wide radial beam angle. - As in the first embodiment, modification to the refractivity and configuration of the
multiple lenses - Since the multi-lens LED 200 of this embodiment increases the beam angle of the beams L in two axial directions while narrowing the beam angle in one axial direction, it is appropriate especially for a light source of an edge emitting LED backlight apparatus.
- Hereinafter an application of the multi-lens LED 200 of this embodiment will be described with reference to a schematic perspective view in
FIG. 7 . Herein,FIG. 7 will be illustrated with a coordinate system having orientations the same as those of the multi-lens LED 200 inFIG. 4 for the convenience's sake. - In
FIG. 7 , thereference numeral 2 represents a reflector of an LCD backlight apparatus, and thereference numeral 4 represents an LCD panel. Thereflector 2 is extended in the z-axial direction while being gradually rising in the y-axial direction. In addition, two upwardlyinclined reflectors 3 are attached to both sides of thereflector 2, in which only one of thereflectors 3 is illustrated for the convenience's sake. An array ofmulti-lens LEDs 200 as of the second embodiment are attached to a support member such as a bar 1. - Then, when the array of the
multi-lens LEDs 200 radiate light beams L1, the beams L1 are reflected by thereflectors LCD panel 4 so as to backlight theLCD panel 4. - Hereinafter a
multi-lens LED 300 according to a third embodiment of the invention will be described with reference toFIG. 8 . As shown inFIG. 8 , amulti-lens LED 300 of the third embodiment has a cross-sectional configuration substantially the same as that of the first and secondmulti-lens LED FIGS. 2 and 5 , respectively, except that inner andouter surfaces second lens 310 are defined by a plurality of straight lines that are connected with adjacent ones at predetermined angles α and β, respectively. - Therefore, where the multi-lens LED 300 of the third embodiment has a generally hemispherical configuration, its construction and operation would be substantially the same as those of the multi-lens LED 100 of the first embodiment. On the other hand, where the multi-lens LED 300 has a generally semi-cylindrical configuration, its construction and operation would be substantially the same as those of the multi-lens LED 200 of the second embodiment.
- Although it has been described that the
first lens 306 is a portion of a sphere, its surface may be faceted as theouter surface 314 of thesecond lens 310. - As described hereinbefore, the present invention provides the dual lenses and the intermediate layer interposed between the dual lenses so that the beam angle of light emitted from the LED chip can be adjusted into a specific range.
- For example, when the first lens is centered behind the LED chip when seen in the propagation direction of light, the second lens has a concave structure and surrounds the first lens, and the intermediate layer is interposed between the first and second lenses, light emitted from the LED chip can be radiated in a wide beam angle up to about 180°. When provided in the form of a hemisphere, the multi-lens LED of the present invention can be attached to for example a wall or a ceiling in use for interior lighting. On the other hand, when provided in the form of a cylinder, the multi-lens LED of the present invention can be applied in arrays to be used as a light source of an LCD backlight apparatus.
- In addition, the first lens may be centered ahead of the LED chip when seen in the propagation direction of light and the second lens may be of a convex configuration to surround the first lens with the intermediate layer being interposed between the first and second lenses so that light from the LED chip can radiate in a narrow beam angle, in particular, in a specific direction.
- While the present invention has been shown and described in connection with the preferred embodiments, it will be apparent to those skilled in the art that various modifications and alterations can be made without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (18)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040063630A KR100638611B1 (en) | 2004-08-12 | 2004-08-12 | Light emitting diode having multiple lenses |
KR2004-63630 | 2004-08-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20060034082A1 true US20060034082A1 (en) | 2006-02-16 |
US7153000B2 US7153000B2 (en) | 2006-12-26 |
Family
ID=35799754
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/957,650 Active 2024-12-24 US7153000B2 (en) | 2004-08-12 | 2004-10-05 | Multi-lens light emitting diode |
Country Status (2)
Country | Link |
---|---|
US (1) | US7153000B2 (en) |
KR (1) | KR100638611B1 (en) |
Cited By (67)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060291203A1 (en) * | 2005-06-27 | 2006-12-28 | Munisamy Anandan | Fiber mixed R-G-B white emitting LED package |
US20070046181A1 (en) * | 2005-08-23 | 2007-03-01 | An-Chi Wei | Organic electroluminescence device |
US20070201225A1 (en) * | 2006-02-27 | 2007-08-30 | Illumination Management Systems | LED device for wide beam generation |
US20070228387A1 (en) * | 2006-04-04 | 2007-10-04 | Gerald Negley | Uniform emission LED package |
US20070258241A1 (en) * | 2006-05-02 | 2007-11-08 | 3M Innovative Properties Company | Led package with non-bonded converging optical element |
US20070258246A1 (en) * | 2006-05-02 | 2007-11-08 | 3M Innovative Properties Company | Led package with compound converging optical element |
US20070258014A1 (en) * | 2006-05-02 | 2007-11-08 | Ati Technologies Inc. | Field sequence detector, method and video device |
US20070257271A1 (en) * | 2006-05-02 | 2007-11-08 | 3M Innovative Properties Company | Led package with encapsulated converging optical element |
US20070257270A1 (en) * | 2006-05-02 | 2007-11-08 | 3M Innovative Properties Company | Led package with wedge-shaped optical element |
US20070274667A1 (en) * | 2006-05-10 | 2007-11-29 | Cree, Inc. | Methods and apparatus for directing light emitting diode output light |
US20070278512A1 (en) * | 2006-05-31 | 2007-12-06 | Cree, Inc. | Packaged light emitting devices including multiple index lenses and methods of fabricating the same |
US20070295972A1 (en) * | 2006-06-27 | 2007-12-27 | Shau-Yu Tsai | Light emitting diode module |
US20080012034A1 (en) * | 2006-07-17 | 2008-01-17 | 3M Innovative Properties Company | Led package with converging extractor |
US20080030993A1 (en) * | 2004-05-05 | 2008-02-07 | Nadarajah Narendran | High Efficiency Light Source Using Solid-State Emitter and Down-Conversion Material |
WO2008016908A2 (en) * | 2006-07-31 | 2008-02-07 | 3M Innovative Properties Company | Led source with hollow collection lens |
US20080051135A1 (en) * | 2006-07-31 | 2008-02-28 | 3M Innovative Properties Company | Combination camera/projector system |
US20080054281A1 (en) * | 2006-08-31 | 2008-03-06 | Nadarajah Narendran | High-efficient light engines using light emitting diodes |
US20080094829A1 (en) * | 2004-05-05 | 2008-04-24 | Rensselaer Polytechnic Institute | Lighting system using multiple colored light emitting sources and diffuser element |
US20080105887A1 (en) * | 2005-06-23 | 2008-05-08 | Nadarajah Narendran | Package Design for Producing White Light With Short-Wavelength Leds and Down-Conversion Materials |
US20080117500A1 (en) * | 2006-11-17 | 2008-05-22 | Nadarajah Narendran | High-power white LEDs and manufacturing method thereof |
US20080278655A1 (en) * | 2007-05-09 | 2008-11-13 | Lg. Philips Lcd Co., Ltd. | Light emitting diode package having dual lens structure and backlight for liquid crystal display device implementing the same |
US20090014731A1 (en) * | 2007-07-11 | 2009-01-15 | Andrews Peter S | LED Chip Design for White Conversion |
US20090014736A1 (en) * | 2007-07-11 | 2009-01-15 | Cree, Inc. | Coating method utilizing phosphor containment structure and devices fabricated using same |
GB2452121A (en) * | 2007-08-21 | 2009-02-25 | Ko-Hsin Lee | Packaging structure of a light emitting diode |
US7525126B2 (en) | 2006-05-02 | 2009-04-28 | 3M Innovative Properties Company | LED package with converging optical element |
US20090116214A1 (en) * | 2006-07-31 | 2009-05-07 | 3M Innovative Properties Company | Led illumination system with polarization recycling |
WO2009094529A2 (en) * | 2008-01-25 | 2009-07-30 | Eveready Battery Company, Inc. | Lighting device and optics package therefor |
US20090261358A1 (en) * | 2008-03-31 | 2009-10-22 | Cree, Inc. | Emission tuning methods and devices fabricated utilizing methods |
US20100020547A1 (en) * | 2005-02-10 | 2010-01-28 | Deepsea Power & Light Company | Led illumination device with cubic zirconia lens |
US20100039810A1 (en) * | 2008-08-14 | 2010-02-18 | Cooper Technologies Company | LED Devices for Offset Wide Beam Generation |
US20100134046A1 (en) * | 2008-12-03 | 2010-06-03 | Illumination Management Solutions, Inc. | Led replacement lamp and a method of replacing preexisting luminaires with led lighting assemblies |
US20100149457A1 (en) * | 2006-04-17 | 2010-06-17 | Panasonic Corporation | Liquid crystal display module, liquid crystal display and its illuminator |
US20100172135A1 (en) * | 2006-02-27 | 2010-07-08 | Illumination Management Solutions Inc. | Led device for wide beam generation |
US20100193832A1 (en) * | 2007-03-02 | 2010-08-05 | Lg Electronics Inc. | Light emitting device |
US20100238669A1 (en) * | 2007-05-21 | 2010-09-23 | Illumination Management Solutions, Inc. | LED Device for Wide Beam Generation and Method of Making the Same |
US20100236472A1 (en) * | 2007-11-27 | 2010-09-23 | Yukio Terashima | Method for growing silicon carbide single crystal |
US20100271708A1 (en) * | 2009-04-28 | 2010-10-28 | Ruud Lighting, Inc. | Lens with controlled light refraction |
CN101950789A (en) * | 2010-08-06 | 2011-01-19 | 李晓锋 | Concentration light-emitting diode and concentration structure thereof |
US20110122371A1 (en) * | 2006-07-31 | 2011-05-26 | 3M Innovative Properties Company | Optical projection subsystem |
US20110157891A1 (en) * | 2009-11-25 | 2011-06-30 | Davis Matthew A | Systems, Methods, and Devices for Sealing LED Light Sources in a Light Module |
US8008676B2 (en) | 2006-05-26 | 2011-08-30 | Cree, Inc. | Solid state light emitting device and method of making same |
US20120063146A1 (en) * | 2009-11-06 | 2012-03-15 | Shinya Kawagoe | Spot light source and bulb-type light source |
US20120104977A1 (en) * | 2010-07-22 | 2012-05-03 | Hgl Technologies Llc | High performance led grow light |
CN102901015A (en) * | 2011-07-26 | 2013-01-30 | 日立空调·家用电器株式会社 | Illuminating apparatus |
US8388198B2 (en) | 2010-09-01 | 2013-03-05 | Illumination Management Solutions, Inc. | Device and apparatus for efficient collection and re-direction of emitted radiation |
US8558252B2 (en) | 2011-08-26 | 2013-10-15 | Cree, Inc. | White LEDs with emission wavelength correction |
US8766527B1 (en) | 2013-03-14 | 2014-07-01 | Cooledge Lighting Inc. | Engineered-phosphor LED packages and related methods |
US20140226356A1 (en) * | 2011-08-25 | 2014-08-14 | Koito Manufacturing Co., Ltd. | Vehicular lamp |
US8835952B2 (en) | 2005-08-04 | 2014-09-16 | Cree, Inc. | Submounts for semiconductor light emitting devices and methods of forming packaged light emitting devices including dispensed encapsulants |
US20140334175A1 (en) * | 2013-05-07 | 2014-11-13 | Goodrich Lighting Systems Gmbh | Led light unit and method of replacing an led light unit |
USD718490S1 (en) * | 2013-03-15 | 2014-11-25 | Cree, Inc. | LED lens |
CN104266111A (en) * | 2014-09-17 | 2015-01-07 | 广东长虹电子有限公司 | Novel backlight module with mixed double lenses |
US20150085225A1 (en) * | 2012-05-29 | 2015-03-26 | Seoul Semiconductor Co., Ltd. | Led backlight unit and led display device including the same |
US9052086B2 (en) | 2011-02-28 | 2015-06-09 | Cooper Technologies Company | Method and system for managing light from a light emitting diode |
CN104747973A (en) * | 2013-12-30 | 2015-07-01 | 鸿富锦精密工业(深圳)有限公司 | Light emitting device and backlight module |
US20150184826A1 (en) * | 2013-12-26 | 2015-07-02 | Hon Hai Precision Industry Co., Ltd. | Light emitting device and backlight module employing same |
US9080739B1 (en) | 2012-09-14 | 2015-07-14 | Cooper Technologies Company | System for producing a slender illumination pattern from a light emitting diode |
CN104838201A (en) * | 2012-11-13 | 2015-08-12 | 市光工业株式会社 | Vehicle lamp device |
US9140430B2 (en) | 2011-02-28 | 2015-09-22 | Cooper Technologies Company | Method and system for managing light from a light emitting diode |
US9200765B1 (en) | 2012-11-20 | 2015-12-01 | Cooper Technologies Company | Method and system for redirecting light emitted from a light emitting diode |
US9255686B2 (en) | 2009-05-29 | 2016-02-09 | Cree, Inc. | Multi-lens LED-array optic system |
US9416926B2 (en) | 2009-04-28 | 2016-08-16 | Cree, Inc. | Lens with inner-cavity surface shaped for controlled light refraction |
CN106252495A (en) * | 2016-09-05 | 2016-12-21 | 清华大学深圳研究生院 | A kind of LED encapsulation and fluorescent material housing thereof |
US9757912B2 (en) | 2014-08-27 | 2017-09-12 | Cree, Inc. | One-piece multi-lens optical member with ultraviolet inhibitor and method of manufacture |
US9951922B2 (en) | 2013-05-07 | 2018-04-24 | Goodrich Lighting Systems Gmbh | LED light unit and method of producing an LED light unit |
US10119662B2 (en) | 2009-04-28 | 2018-11-06 | Cree, Inc. | Lens with controlled light refraction |
CN110645545A (en) * | 2019-09-12 | 2020-01-03 | 广州市哈雅光电设备有限公司 | LED soft light mixed optical system |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101080355B1 (en) | 2004-10-18 | 2011-11-04 | 삼성전자주식회사 | Light emitting diode, lens for the same |
US20060097385A1 (en) * | 2004-10-25 | 2006-05-11 | Negley Gerald H | Solid metal block semiconductor light emitting device mounting substrates and packages including cavities and heat sinks, and methods of packaging same |
KR100580753B1 (en) | 2004-12-17 | 2006-05-15 | 엘지이노텍 주식회사 | Light emitting device package |
US7731395B2 (en) * | 2005-01-26 | 2010-06-08 | Anthony International | Linear lenses for LEDs |
EP1693904B1 (en) | 2005-02-18 | 2020-03-25 | Nichia Corporation | Light emitting device provided with lens for controlling light distribution characteristic |
CN100585268C (en) * | 2005-03-07 | 2010-01-27 | 日亚化学工业株式会社 | Planar light source and planar lighting apparatus |
US7501659B2 (en) * | 2005-04-12 | 2009-03-10 | Japan Cash Machine Co., Ltd. | LED device and optical detector therewith for bill validator |
KR100679272B1 (en) * | 2005-06-30 | 2007-02-06 | 서울반도체 주식회사 | Light emitting diode |
DE102005061798A1 (en) * | 2005-09-30 | 2007-04-05 | Osram Opto Semiconductors Gmbh | Lighting arrangement has radiation-emitting diode with two beam-shaping optical elements that deviate part of the light from the optical axis |
US20070091615A1 (en) * | 2005-10-25 | 2007-04-26 | Chi-Tang Hsieh | Backlight module for LCD monitors and method of backlighting the same |
TWI333572B (en) * | 2005-12-20 | 2010-11-21 | Ind Tech Res Inst | Light source package structure |
US7521726B2 (en) * | 2006-03-15 | 2009-04-21 | Illinois Tool Works Inc. | Collimated LED array with reflector |
KR100837622B1 (en) * | 2006-11-21 | 2008-06-12 | 한국 고덴시 주식회사 | LED with improved a parallel light |
KR101221292B1 (en) | 2006-11-30 | 2013-01-11 | 엘지디스플레이 주식회사 | Light Emitting Diode Cluster and Backlight Unit using the same |
US7618163B2 (en) | 2007-04-02 | 2009-11-17 | Ruud Lighting, Inc. | Light-directing LED apparatus |
CN103822172B (en) * | 2007-04-05 | 2017-07-28 | 飞利浦灯具控股公司 | Light-beam shaper |
KR100809658B1 (en) * | 2007-06-27 | 2008-03-05 | 김재을 | Lens for led and led display device using thereof it |
US8029157B2 (en) * | 2007-12-21 | 2011-10-04 | William Li | Light refraction illumination device |
US9423096B2 (en) | 2008-05-23 | 2016-08-23 | Cree, Inc. | LED lighting apparatus |
US8388193B2 (en) | 2008-05-23 | 2013-03-05 | Ruud Lighting, Inc. | Lens with TIR for off-axial light distribution |
US8348475B2 (en) | 2008-05-23 | 2013-01-08 | Ruud Lighting, Inc. | Lens with controlled backlight management |
US7766509B1 (en) | 2008-06-13 | 2010-08-03 | Lumec Inc. | Orientable lens for an LED fixture |
US8002435B2 (en) * | 2008-06-13 | 2011-08-23 | Philips Electronics Ltd Philips Electronique Ltee | Orientable lens for an LED fixture |
TWI364858B (en) * | 2008-06-19 | 2012-05-21 | Silitek Electronic Guangzhou | Photoelectric semiconductor device capable of generating uniform compound lights |
US8233115B2 (en) * | 2008-07-25 | 2012-07-31 | Honeywell International Inc. | Flat panel display assembly with improved luminance uniformity and method for constructing the same |
US7841750B2 (en) | 2008-08-01 | 2010-11-30 | Ruud Lighting, Inc. | Light-directing lensing member with improved angled light distribution |
TWI363907B (en) * | 2008-08-05 | 2012-05-11 | Au Optronics Corp | Backlight module and light emitting diode thereof |
US8246212B2 (en) * | 2009-01-30 | 2012-08-21 | Koninklijke Philips Electronics N.V. | LED optical assembly |
TWI463708B (en) * | 2009-02-24 | 2014-12-01 | Advanced Optoelectronic Tech | Side-emitting type semiconductor light emitting device package and manufacturing process thereof |
US8299489B2 (en) * | 2010-08-03 | 2012-10-30 | Silitek Electronics (Guangzhou) Co., Ltd. | Illumination device |
TWM375188U (en) * | 2009-04-29 | 2010-03-01 | Hsin I Technology Co Ltd | Structure of enclosure of LED |
DE102009035370A1 (en) * | 2009-07-30 | 2011-02-03 | Osram Gesellschaft mit beschränkter Haftung | lamp |
US8704259B2 (en) * | 2009-09-25 | 2014-04-22 | Luxintec, S.L. | Optical illumination device |
CN102576797B (en) | 2009-10-08 | 2016-05-11 | 皇家飞利浦电子股份有限公司 | The lens that generate for asymmetric |
US8450756B2 (en) | 2010-06-14 | 2013-05-28 | Micron Technology, Inc. | Multi-dimensional LED array system and associated methods and structures |
US8558161B2 (en) | 2010-08-10 | 2013-10-15 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Lens having multiple conic sections for LEDs and proximity sensors |
US8501509B2 (en) | 2010-08-25 | 2013-08-06 | Micron Technology, Inc. | Multi-dimensional solid state lighting device array system and associated methods and structures |
EP4242516A3 (en) | 2011-12-02 | 2023-11-22 | Seoul Semiconductor Co., Ltd. | Light emitting module and lens |
US10047930B2 (en) * | 2011-12-02 | 2018-08-14 | Seoul Semiconductor Co., Ltd. | Light emitting module and lens |
KR102014081B1 (en) * | 2011-12-21 | 2019-08-27 | 엘지이노텍 주식회사 | Member for controlling luminous flux and display device having the same |
US9541257B2 (en) | 2012-02-29 | 2017-01-10 | Cree, Inc. | Lens for primarily-elongate light distribution |
US9541258B2 (en) | 2012-02-29 | 2017-01-10 | Cree, Inc. | Lens for wide lateral-angle distribution |
US10408429B2 (en) | 2012-02-29 | 2019-09-10 | Ideal Industries Lighting Llc | Lens for preferential-side distribution |
US9752749B2 (en) | 2012-04-05 | 2017-09-05 | JST Performance, LLC | Lens system for lighting fixture |
USD697664S1 (en) | 2012-05-07 | 2014-01-14 | Cree, Inc. | LED lens |
US9523479B2 (en) | 2014-01-03 | 2016-12-20 | Cree, Inc. | LED lens |
US9410674B2 (en) | 2014-08-18 | 2016-08-09 | Cree, Inc. | LED lens |
US10234094B2 (en) * | 2016-09-13 | 2019-03-19 | Valeo North America, Inc. | Lighting device for producing a supplemental beam |
US10468566B2 (en) | 2017-04-10 | 2019-11-05 | Ideal Industries Lighting Llc | Hybrid lens for controlled light distribution |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3875456A (en) * | 1972-04-04 | 1975-04-01 | Hitachi Ltd | Multi-color semiconductor lamp |
US6896381B2 (en) * | 2002-10-11 | 2005-05-24 | Light Prescriptions Innovators, Llc | Compact folded-optics illumination lens |
US20050224829A1 (en) * | 2004-04-06 | 2005-10-13 | Negley Gerald H | Light-emitting devices having multiple encapsulation layers with at least one of the encapsulation layers including nanoparticles and methods of forming the same |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0750797B2 (en) | 1985-12-13 | 1995-05-31 | 沖電気工業株式会社 | Light emitting diode |
US6252254B1 (en) | 1998-02-06 | 2001-06-26 | General Electric Company | Light emitting device with phosphor composition |
JP2000124504A (en) | 1998-10-13 | 2000-04-28 | Eeshikku Kk | Full-color led lamp |
EP2131404A3 (en) | 1999-07-26 | 2010-01-06 | Labosphere Institute | Bulk-shaped lens, light-emitting unit, lighting equipment and optical information system |
US20040070001A1 (en) | 2002-10-15 | 2004-04-15 | Jung-Tai Lee | LED element |
KR100405453B1 (en) | 2003-07-25 | 2003-11-12 | Seoul Semiconductor Co Ltd | Chip light emitting diode(led) and manufacturing method thereof |
-
2004
- 2004-08-12 KR KR1020040063630A patent/KR100638611B1/en active IP Right Grant
- 2004-10-05 US US10/957,650 patent/US7153000B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3875456A (en) * | 1972-04-04 | 1975-04-01 | Hitachi Ltd | Multi-color semiconductor lamp |
US6896381B2 (en) * | 2002-10-11 | 2005-05-24 | Light Prescriptions Innovators, Llc | Compact folded-optics illumination lens |
US20050224829A1 (en) * | 2004-04-06 | 2005-10-13 | Negley Gerald H | Light-emitting devices having multiple encapsulation layers with at least one of the encapsulation layers including nanoparticles and methods of forming the same |
Cited By (149)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11028979B2 (en) | 2004-05-05 | 2021-06-08 | Rensselaer Polytechnic Institute | Lighting source using solid state emitter and phosphor materials |
US20080030993A1 (en) * | 2004-05-05 | 2008-02-07 | Nadarajah Narendran | High Efficiency Light Source Using Solid-State Emitter and Down-Conversion Material |
US7819549B2 (en) | 2004-05-05 | 2010-10-26 | Rensselaer Polytechnic Institute | High efficiency light source using solid-state emitter and down-conversion material |
US20110063830A1 (en) * | 2004-05-05 | 2011-03-17 | Rensselaer Polytechnic Institute | Lighting source using solid state emitter and phosphor materials |
US9447945B2 (en) | 2004-05-05 | 2016-09-20 | Rensselaer Polytechnic Institute | Lighting source using solid state emitter and phosphor materials |
US20080094829A1 (en) * | 2004-05-05 | 2008-04-24 | Rensselaer Polytechnic Institute | Lighting system using multiple colored light emitting sources and diffuser element |
US8960953B2 (en) | 2004-05-05 | 2015-02-24 | Rensselaer Polytechnic Institute | Lighting source using solid state emitter and phosphor materials |
US8764225B2 (en) | 2004-05-05 | 2014-07-01 | Rensselaer Polytechnic Institute | Lighting source using solid state emitter and phosphor materials |
US20100020547A1 (en) * | 2005-02-10 | 2010-01-28 | Deepsea Power & Light Company | Led illumination device with cubic zirconia lens |
US20080105887A1 (en) * | 2005-06-23 | 2008-05-08 | Nadarajah Narendran | Package Design for Producing White Light With Short-Wavelength Leds and Down-Conversion Materials |
US7750359B2 (en) | 2005-06-23 | 2010-07-06 | Rensselaer Polytechnic Institute | Package design for producing white light with short-wavelength LEDS and down-conversion materials |
US20060291203A1 (en) * | 2005-06-27 | 2006-12-28 | Munisamy Anandan | Fiber mixed R-G-B white emitting LED package |
US8835952B2 (en) | 2005-08-04 | 2014-09-16 | Cree, Inc. | Submounts for semiconductor light emitting devices and methods of forming packaged light emitting devices including dispensed encapsulants |
US20070046181A1 (en) * | 2005-08-23 | 2007-03-01 | An-Chi Wei | Organic electroluminescence device |
US7993036B2 (en) | 2006-02-27 | 2011-08-09 | Illumination Management Solutions, Inc. | LED device for wide beam generation |
US20100172135A1 (en) * | 2006-02-27 | 2010-07-08 | Illumination Management Solutions Inc. | Led device for wide beam generation |
US20110216544A1 (en) * | 2006-02-27 | 2011-09-08 | Holder Ronald G | LED Device for Wide Beam Generation |
US20070201225A1 (en) * | 2006-02-27 | 2007-08-30 | Illumination Management Systems | LED device for wide beam generation |
US8511864B2 (en) | 2006-02-27 | 2013-08-20 | Illumination Management Solutions | LED device for wide beam generation |
US8905597B2 (en) | 2006-02-27 | 2014-12-09 | Illumination Management Solutions, Inc. | LED device for wide beam generation |
US10174908B2 (en) | 2006-02-27 | 2019-01-08 | Eaton Intelligent Power Limited | LED device for wide beam generation |
US7942559B2 (en) | 2006-02-27 | 2011-05-17 | Cooper Technologies Company | LED device for wide beam generation |
US8434912B2 (en) | 2006-02-27 | 2013-05-07 | Illumination Management Solutions, Inc. | LED device for wide beam generation |
US7674018B2 (en) | 2006-02-27 | 2010-03-09 | Illumination Management Solutions Inc. | LED device for wide beam generation |
US20100165625A1 (en) * | 2006-02-27 | 2010-07-01 | Illumination Management Solutions Inc. | Led device for wide beam generation |
US8414161B2 (en) | 2006-02-27 | 2013-04-09 | Cooper Technologies Company | LED device for wide beam generation |
US9388949B2 (en) | 2006-02-27 | 2016-07-12 | Illumination Management Solutions, Inc. | LED device for wide beam generation |
US9297520B2 (en) | 2006-02-27 | 2016-03-29 | Illumination Management Solutions, Inc. | LED device for wide beam generation |
US8210722B2 (en) | 2006-02-27 | 2012-07-03 | Cooper Technologies Company | LED device for wide beam generation |
US20100128489A1 (en) * | 2006-02-27 | 2010-05-27 | Illumination Management Solutions Inc. | Led device for wide beam generation |
US8969908B2 (en) * | 2006-04-04 | 2015-03-03 | Cree, Inc. | Uniform emission LED package |
US20070228387A1 (en) * | 2006-04-04 | 2007-10-04 | Gerald Negley | Uniform emission LED package |
TWI447931B (en) * | 2006-04-04 | 2014-08-01 | Cree Inc | Uniform emission led package |
US20100149457A1 (en) * | 2006-04-17 | 2010-06-17 | Panasonic Corporation | Liquid crystal display module, liquid crystal display and its illuminator |
US7390117B2 (en) | 2006-05-02 | 2008-06-24 | 3M Innovative Properties Company | LED package with compound converging optical element |
US7525126B2 (en) | 2006-05-02 | 2009-04-28 | 3M Innovative Properties Company | LED package with converging optical element |
US20070257271A1 (en) * | 2006-05-02 | 2007-11-08 | 3M Innovative Properties Company | Led package with encapsulated converging optical element |
US20070258014A1 (en) * | 2006-05-02 | 2007-11-08 | Ati Technologies Inc. | Field sequence detector, method and video device |
US20070258241A1 (en) * | 2006-05-02 | 2007-11-08 | 3M Innovative Properties Company | Led package with non-bonded converging optical element |
US20070258246A1 (en) * | 2006-05-02 | 2007-11-08 | 3M Innovative Properties Company | Led package with compound converging optical element |
US20070257270A1 (en) * | 2006-05-02 | 2007-11-08 | 3M Innovative Properties Company | Led package with wedge-shaped optical element |
US20070274667A1 (en) * | 2006-05-10 | 2007-11-29 | Cree, Inc. | Methods and apparatus for directing light emitting diode output light |
US7805048B2 (en) * | 2006-05-10 | 2010-09-28 | Cree, Inc. | Methods and apparatus for directing light emitting diode output light |
US8008676B2 (en) | 2006-05-26 | 2011-08-30 | Cree, Inc. | Solid state light emitting device and method of making same |
US7952115B2 (en) | 2006-05-31 | 2011-05-31 | Cree, Inc. | Packaged light emitting devices including multiple index lenses and methods of fabricating the same |
US7646035B2 (en) | 2006-05-31 | 2010-01-12 | Cree, Inc. | Packaged light emitting devices including multiple index lenses and multiple index lenses for packaged light emitting devices |
WO2007142778A3 (en) * | 2006-05-31 | 2008-02-07 | Cree Inc | Packaged light emitting devices including multiple index lenses and methods of fabricating the same |
US20100073917A1 (en) * | 2006-05-31 | 2010-03-25 | Loh Ban P | Packaged light emitting devices including multiple index lenses and methods of fabricating the same |
US20070278512A1 (en) * | 2006-05-31 | 2007-12-06 | Cree, Inc. | Packaged light emitting devices including multiple index lenses and methods of fabricating the same |
WO2007142778A2 (en) * | 2006-05-31 | 2007-12-13 | Cree, Inc. | Packaged light emitting devices including multiple index lenses and methods of fabricating the same |
US20070295972A1 (en) * | 2006-06-27 | 2007-12-27 | Shau-Yu Tsai | Light emitting diode module |
US20080012034A1 (en) * | 2006-07-17 | 2008-01-17 | 3M Innovative Properties Company | Led package with converging extractor |
WO2008016908A3 (en) * | 2006-07-31 | 2008-06-12 | 3M Innovative Properties Co | Led source with hollow collection lens |
US8115384B2 (en) | 2006-07-31 | 2012-02-14 | 3M Innovative Properties Company | LED source with hollow collection lens |
WO2008016908A2 (en) * | 2006-07-31 | 2008-02-07 | 3M Innovative Properties Company | Led source with hollow collection lens |
US20080048553A1 (en) * | 2006-07-31 | 2008-02-28 | 3M Innovative Company | Led source with hollow collection lens |
US20080051135A1 (en) * | 2006-07-31 | 2008-02-28 | 3M Innovative Properties Company | Combination camera/projector system |
US8459800B2 (en) | 2006-07-31 | 2013-06-11 | 3M Innovative Properties Company | Optical projection subsystem |
US8274220B2 (en) | 2006-07-31 | 2012-09-25 | 3M Innovative Properties Company | LED source with hollow collection lens |
US20090116214A1 (en) * | 2006-07-31 | 2009-05-07 | 3M Innovative Properties Company | Led illumination system with polarization recycling |
US8075140B2 (en) | 2006-07-31 | 2011-12-13 | 3M Innovative Properties Company | LED illumination system with polarization recycling |
US8070295B2 (en) | 2006-07-31 | 2011-12-06 | 3M Innovative Properties Company | Optical projection subsystem |
US20110122371A1 (en) * | 2006-07-31 | 2011-05-26 | 3M Innovative Properties Company | Optical projection subsystem |
US7703942B2 (en) | 2006-08-31 | 2010-04-27 | Rensselaer Polytechnic Institute | High-efficient light engines using light emitting diodes |
US20080054281A1 (en) * | 2006-08-31 | 2008-03-06 | Nadarajah Narendran | High-efficient light engines using light emitting diodes |
US20110102883A1 (en) * | 2006-11-17 | 2011-05-05 | Rensselaer Polytechnic Institute | High-power white leds and manufacturing method thereof |
US8164825B2 (en) | 2006-11-17 | 2012-04-24 | Rensselaer Polytechnic Institute | High-power white LEDs and manufacturing method thereof |
US7889421B2 (en) | 2006-11-17 | 2011-02-15 | Rensselaer Polytechnic Institute | High-power white LEDs and manufacturing method thereof |
US8031393B2 (en) | 2006-11-17 | 2011-10-04 | Renesselaer Polytechnic Institute | High-power white LEDs and manufacturing method thereof |
US9105816B2 (en) | 2006-11-17 | 2015-08-11 | Rensselaer Polytechnic Institute | High-power white LEDs |
US20080117500A1 (en) * | 2006-11-17 | 2008-05-22 | Nadarajah Narendran | High-power white LEDs and manufacturing method thereof |
US10305001B2 (en) | 2006-11-17 | 2019-05-28 | Rensselaer Polytechnic Institute | High-power white LEDs |
US20100193832A1 (en) * | 2007-03-02 | 2010-08-05 | Lg Electronics Inc. | Light emitting device |
US8129744B2 (en) * | 2007-03-02 | 2012-03-06 | Lg Electronics Inc. | Light emitting device |
US20080278655A1 (en) * | 2007-05-09 | 2008-11-13 | Lg. Philips Lcd Co., Ltd. | Light emitting diode package having dual lens structure and backlight for liquid crystal display device implementing the same |
US7859614B2 (en) * | 2007-05-09 | 2010-12-28 | Lg Display Co., Ltd. | Light emitting diode package having dual lens structure and backlight for liquid crystal display device implementing the same |
US20100238669A1 (en) * | 2007-05-21 | 2010-09-23 | Illumination Management Solutions, Inc. | LED Device for Wide Beam Generation and Method of Making the Same |
US8430538B2 (en) * | 2007-05-21 | 2013-04-30 | Illumination Management Solutions, Inc. | LED device for wide beam generation and method of making the same |
US8777457B2 (en) | 2007-05-21 | 2014-07-15 | Illumination Management Solutions, Inc. | LED device for wide beam generation and method of making the same |
US9482394B2 (en) | 2007-05-21 | 2016-11-01 | Illumination Management Solutions, Inc. | LED device for wide beam generation and method of making the same |
US20090014736A1 (en) * | 2007-07-11 | 2009-01-15 | Cree, Inc. | Coating method utilizing phosphor containment structure and devices fabricated using same |
US20090014731A1 (en) * | 2007-07-11 | 2009-01-15 | Andrews Peter S | LED Chip Design for White Conversion |
US10505083B2 (en) | 2007-07-11 | 2019-12-10 | Cree, Inc. | Coating method utilizing phosphor containment structure and devices fabricated using same |
US9401461B2 (en) | 2007-07-11 | 2016-07-26 | Cree, Inc. | LED chip design for white conversion |
GB2452121A (en) * | 2007-08-21 | 2009-02-25 | Ko-Hsin Lee | Packaging structure of a light emitting diode |
US20100236472A1 (en) * | 2007-11-27 | 2010-09-23 | Yukio Terashima | Method for growing silicon carbide single crystal |
US20090190338A1 (en) * | 2008-01-25 | 2009-07-30 | Eveready Battery Company, Inc. | Lighting Device and Optics Package Therefor |
WO2009094529A3 (en) * | 2008-01-25 | 2009-10-22 | Eveready Battery Company, Inc. | Lighting device and optics package therefor |
WO2009094529A2 (en) * | 2008-01-25 | 2009-07-30 | Eveready Battery Company, Inc. | Lighting device and optics package therefor |
US7942553B2 (en) * | 2008-01-25 | 2011-05-17 | Eveready Battery Company, Inc. | Lighting device and optics package therefor |
US20090261358A1 (en) * | 2008-03-31 | 2009-10-22 | Cree, Inc. | Emission tuning methods and devices fabricated utilizing methods |
US8877524B2 (en) | 2008-03-31 | 2014-11-04 | Cree, Inc. | Emission tuning methods and devices fabricated utilizing methods |
US8132942B2 (en) | 2008-08-14 | 2012-03-13 | Cooper Technologies Company | LED devices for offset wide beam generation |
US20110115360A1 (en) * | 2008-08-14 | 2011-05-19 | Holder Ronald G | LED Devices for Offset Wide Beam Generation |
US7854536B2 (en) | 2008-08-14 | 2010-12-21 | Cooper Technologies Company | LED devices for offset wide beam generation |
US10222030B2 (en) | 2008-08-14 | 2019-03-05 | Cooper Technologies Company | LED devices for offset wide beam generation |
US8454205B2 (en) | 2008-08-14 | 2013-06-04 | Cooper Technologies Company | LED devices for offset wide beam generation |
US9297517B2 (en) | 2008-08-14 | 2016-03-29 | Cooper Technologies Company | LED devices for offset wide beam generation |
US20100039810A1 (en) * | 2008-08-14 | 2010-02-18 | Cooper Technologies Company | LED Devices for Offset Wide Beam Generation |
US10976027B2 (en) | 2008-08-14 | 2021-04-13 | Signify Holding B.V. | LED devices for offset wide beam generation |
US10400996B2 (en) | 2008-08-14 | 2019-09-03 | Eaton Intelligent Power Limited | LED devices for offset wide beam generation |
US20100134046A1 (en) * | 2008-12-03 | 2010-06-03 | Illumination Management Solutions, Inc. | Led replacement lamp and a method of replacing preexisting luminaires with led lighting assemblies |
US8783900B2 (en) | 2008-12-03 | 2014-07-22 | Illumination Management Solutions, Inc. | LED replacement lamp and a method of replacing preexisting luminaires with LED lighting assemblies |
US8256919B2 (en) | 2008-12-03 | 2012-09-04 | Illumination Management Solutions, Inc. | LED replacement lamp and a method of replacing preexisting luminaires with LED lighting assemblies |
US20100271708A1 (en) * | 2009-04-28 | 2010-10-28 | Ruud Lighting, Inc. | Lens with controlled light refraction |
US10119662B2 (en) | 2009-04-28 | 2018-11-06 | Cree, Inc. | Lens with controlled light refraction |
US9217854B2 (en) | 2009-04-28 | 2015-12-22 | Cree, Inc. | Lens with controlled light refraction |
US9416926B2 (en) | 2009-04-28 | 2016-08-16 | Cree, Inc. | Lens with inner-cavity surface shaped for controlled light refraction |
US9255686B2 (en) | 2009-05-29 | 2016-02-09 | Cree, Inc. | Multi-lens LED-array optic system |
US9689552B2 (en) | 2009-05-29 | 2017-06-27 | Cree, Inc. | Multi-lens LED-array optic system |
US20120063146A1 (en) * | 2009-11-06 | 2012-03-15 | Shinya Kawagoe | Spot light source and bulb-type light source |
US9052070B2 (en) | 2009-11-25 | 2015-06-09 | Cooper Technologies Company | Systems, methods, and devices for sealing LED light sources in a light module |
US8545049B2 (en) | 2009-11-25 | 2013-10-01 | Cooper Technologies Company | Systems, methods, and devices for sealing LED light sources in a light module |
US20110157891A1 (en) * | 2009-11-25 | 2011-06-30 | Davis Matthew A | Systems, Methods, and Devices for Sealing LED Light Sources in a Light Module |
US20120104977A1 (en) * | 2010-07-22 | 2012-05-03 | Hgl Technologies Llc | High performance led grow light |
CN101950789A (en) * | 2010-08-06 | 2011-01-19 | 李晓锋 | Concentration light-emitting diode and concentration structure thereof |
US9109781B2 (en) | 2010-09-01 | 2015-08-18 | Illumination Management Solutions, Inc. | Device and apparatus for efficient collection and re-direction of emitted radiation |
US8388198B2 (en) | 2010-09-01 | 2013-03-05 | Illumination Management Solutions, Inc. | Device and apparatus for efficient collection and re-direction of emitted radiation |
US8727573B2 (en) | 2010-09-01 | 2014-05-20 | Cooper Technologies Company | Device and apparatus for efficient collection and re-direction of emitted radiation |
US9140430B2 (en) | 2011-02-28 | 2015-09-22 | Cooper Technologies Company | Method and system for managing light from a light emitting diode |
US9458983B2 (en) | 2011-02-28 | 2016-10-04 | Cooper Technologies Company | Method and system for managing light from a light emitting diode |
US9052086B2 (en) | 2011-02-28 | 2015-06-09 | Cooper Technologies Company | Method and system for managing light from a light emitting diode |
US9435510B2 (en) | 2011-02-28 | 2016-09-06 | Cooper Technologies Company | Method and system for managing light from a light emitting diode |
US9574746B2 (en) | 2011-02-28 | 2017-02-21 | Cooper Technologies Company | Method and system for managing light from a light emitting diode |
CN102901015A (en) * | 2011-07-26 | 2013-01-30 | 日立空调·家用电器株式会社 | Illuminating apparatus |
US9297508B2 (en) * | 2011-08-25 | 2016-03-29 | Koito Manufacturing Co., Ltd. | Vehicular lamp |
US20140226356A1 (en) * | 2011-08-25 | 2014-08-14 | Koito Manufacturing Co., Ltd. | Vehicular lamp |
US8558252B2 (en) | 2011-08-26 | 2013-10-15 | Cree, Inc. | White LEDs with emission wavelength correction |
US20150085225A1 (en) * | 2012-05-29 | 2015-03-26 | Seoul Semiconductor Co., Ltd. | Led backlight unit and led display device including the same |
US9080739B1 (en) | 2012-09-14 | 2015-07-14 | Cooper Technologies Company | System for producing a slender illumination pattern from a light emitting diode |
CN104838201A (en) * | 2012-11-13 | 2015-08-12 | 市光工业株式会社 | Vehicle lamp device |
US9200765B1 (en) | 2012-11-20 | 2015-12-01 | Cooper Technologies Company | Method and system for redirecting light emitted from a light emitting diode |
US9000663B2 (en) | 2013-03-14 | 2015-04-07 | Cooledge Lighting Inc. | Engineered-phosphor LED packages and related methods |
US20140264409A1 (en) * | 2013-03-14 | 2014-09-18 | Ian Ashdown | Engineered-phosphor led packages and related methods |
US8847261B1 (en) * | 2013-03-14 | 2014-09-30 | Cooledge Lighting Inc. | Light-emitting devices having engineered phosphor elements |
US9246070B2 (en) | 2013-03-14 | 2016-01-26 | Cooledge Lighting, Inc. | Engineered-phosphor LED packages and related methods |
US8766527B1 (en) | 2013-03-14 | 2014-07-01 | Cooledge Lighting Inc. | Engineered-phosphor LED packages and related methods |
USD718490S1 (en) * | 2013-03-15 | 2014-11-25 | Cree, Inc. | LED lens |
US20140334175A1 (en) * | 2013-05-07 | 2014-11-13 | Goodrich Lighting Systems Gmbh | Led light unit and method of replacing an led light unit |
US9951922B2 (en) | 2013-05-07 | 2018-04-24 | Goodrich Lighting Systems Gmbh | LED light unit and method of producing an LED light unit |
US10302265B2 (en) | 2013-05-07 | 2019-05-28 | Goodrich Lighting Systems Gmbh | LED light unit and method of replacing an LED light unit |
US9945527B2 (en) * | 2013-05-07 | 2018-04-17 | Goodrich Lighting Systems Gmbh | LED light unit and method of replacing an LED light unit |
US10591132B2 (en) | 2013-05-07 | 2020-03-17 | Goodrich Lighting Systems Gmbh | LED light unit and method of producing an LED light unit |
US20150184826A1 (en) * | 2013-12-26 | 2015-07-02 | Hon Hai Precision Industry Co., Ltd. | Light emitting device and backlight module employing same |
CN104747973A (en) * | 2013-12-30 | 2015-07-01 | 鸿富锦精密工业(深圳)有限公司 | Light emitting device and backlight module |
US9757912B2 (en) | 2014-08-27 | 2017-09-12 | Cree, Inc. | One-piece multi-lens optical member with ultraviolet inhibitor and method of manufacture |
CN104266111A (en) * | 2014-09-17 | 2015-01-07 | 广东长虹电子有限公司 | Novel backlight module with mixed double lenses |
CN106252495A (en) * | 2016-09-05 | 2016-12-21 | 清华大学深圳研究生院 | A kind of LED encapsulation and fluorescent material housing thereof |
CN110645545A (en) * | 2019-09-12 | 2020-01-03 | 广州市哈雅光电设备有限公司 | LED soft light mixed optical system |
Also Published As
Publication number | Publication date |
---|---|
KR100638611B1 (en) | 2006-10-26 |
US7153000B2 (en) | 2006-12-26 |
KR20060014899A (en) | 2006-02-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7153000B2 (en) | Multi-lens light emitting diode | |
USRE48712E1 (en) | Color mixing optics for LED lighting | |
US7118236B2 (en) | Light emitting diode lens and backlight apparatus having the same | |
US9557033B2 (en) | Optical system for batwing distribution | |
US7712931B1 (en) | Sweep collimator | |
US7034343B1 (en) | Dipolar side-emitting LED lens and LED module incorporating the same | |
US8100557B2 (en) | LED lighting module with large light emitting angle | |
JP5007395B2 (en) | Solid light source | |
US20060152820A1 (en) | Lens and light-emitting device including the lens | |
JP6422896B2 (en) | Optical structure, lighting unit, and manufacturing method | |
US20170102128A1 (en) | Beam Forming Optic for LED | |
US20050201118A1 (en) | Optical element, compound optical element, and illuminating apparatus | |
US20070114549A1 (en) | Light-emitting diode | |
US8269243B2 (en) | LED unit | |
JP4239563B2 (en) | Light emitting diode and LED light | |
JP2009522779A (en) | LED with composite encapsulant lens | |
TW201022592A (en) | Optical lens and light emitting diode (LED) illuminating device thereof | |
CN111025743B (en) | Light source module and display device | |
US9528679B2 (en) | Wide angle optical system for LED array | |
WO2014174859A1 (en) | Illuminator and wide light distribution lens | |
US9188308B2 (en) | Light emitting device package and illumination apparatus | |
US20090135605A1 (en) | Led unit | |
US20060202218A1 (en) | Light-emitting diode for decoration | |
JP5848252B2 (en) | Light source device, light source lens, and illumination device | |
US20100109038A1 (en) | Light emitting diode with integral parabolic reflector |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SAMSUNG ELECTRO-MECHANICS CO., LTD., KOREA, REPUBL Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JUNG KYU PARK;YOUNG SAM PARK;HUN JOO HAHM;AND OTHERS;REEL/FRAME:015922/0036 Effective date: 20040920 |
|
AS | Assignment |
Owner name: SAMSUNG ELECTRO-MECHANICS CO., LTD., KOREA, REPUBL Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE FIFTH ASSIGNOR'S NAME PREVIOUSLY RECORDED ON REEL 015922 FRAME 0036;ASSIGNORS:PARK, JUNG KYU;PARK, YOUNG SAM;HAHM, HUN JOO;AND OTHERS;REEL/FRAME:018506/0332 Effective date: 20040920 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
AS | Assignment |
Owner name: SAMSUNG LED CO., LTD., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAMSUNG ELECTRO-MECHANICS CO., LTD.;REEL/FRAME:024723/0532 Effective date: 20100712 |
|
AS | Assignment |
Owner name: SAMSUNG ELECTRONICS CO., LTD., KOREA, REPUBLIC OF Free format text: MERGER;ASSIGNOR:SAMSUNG LED CO., LTD.;REEL/FRAME:028744/0272 Effective date: 20120403 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 12TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1553) Year of fee payment: 12 |